Question

A 1.50-liter sample of dry air in a cylinder exerts a pressure of 3.00 atmospheres at a temperature of 25°C. Without changing the temperature, a piston is moved in the cylinder until the pressure in the cylinder is reduced to 1.00 atmospheres. The volume of the gas is _____.

Answer 1

Hope this helps you.

Answer 2

Answer:

$V_2=4.5 L$

Explanation:

Hi, air can be considered as an ideal gas. If mantaining constant the temeperature, you can apply the Boyle-Mariotte formula:

$P_1*V_1=P_2*V_2$

In this case:

$P_1=3 atm$

$V_1=1.5 L$

$P_2=1 atm$

So:

$V_2=\frac{P_1*V_1}{P_2}$

$V_2=\frac{3atm*1.5 L}{1atm}$

$V_2=4.5 L$